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Knowledgebase

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How fast is the update cycle for the 0-20 mA Output signal?

How fast is the update cycle for the 0-20 mA output signal? Is it safe enough to check the 0-20 mA signal with a PLC every second in order to receive a peak?

How can I display the decimal points of an Integer out word from an HI 3000 or 4000 series unit?

I have a 100 lb scale and want two decimal points. I have the two decimal point set in the instrument, but the two decimal are dropped during communications. How can I display the decimal points of an Integer out word from my Hardy Weight Controller?

Can I mix different model load cells?

We have a system with 4 load cells and one load cell needs to be replaced. Do I have to use the same manufacturer and model, or can I mix different model load cells together on the same system? Will my C2 function still work?

Why won't my HI 3030 display 4 channels?

I can't setup more than channel 1 in my HI 3030, which has options: -PM-AD-JB-00-DN. I want to add 2 scales but only configurations for channel 1 appears in the controller and in the WEB server. I have  searched the manual and can not find the answer. Can you list the input options for my HI 3030?

How do I protect my controllers, systems and scales from static electricity?

What is the best way to protect my Hardy controllers, systems and scales from static electricity problems? My system locks up on a regular basis and I think it is caused by static.

What does the blinking LED's signify on my HI 2151/30WC?

The weight deviation in the upper range on our HI 2151/30WC has been growing slowly over the last couple of months. I noticed that the status LED's for Alarm 1 + 2 were blinking alternatively with the LED's for 'Zero Track' + 'Motion' + 'CTR Zero'. The weight reading on the display was normal. After switching the module off and on the LED's were still blinking. Measurement of Excitation, Sense and Signal wires gave normal results. The unit was switched off and on once again, after which the LED's were not blinking anymore. Could you give me an explanation for the blinking LED's? Could this also cause a weight deviation?

Common PLC definitions

I'm starting a learning curve with your products and am not familiar with many of the acronyms used. Can you provide a definition for common PLC terms? 

Why is my HI 2160RC always in REC mode when changing set points?

My 2160RC rate controller stays in constant REC when I send a new set point over my communications option.  What is wrong?

Why can't I connect my HI 3000 unit to the DeviceNet Network?

We are having problems connecting our HI 3000 series controller (either an HI 3030, HI 3010, HI 3300 or HI 3600) to the DeviceNet network. Any suggestions?

What is the temperature range for the HI 2151/30WC?

Radiant heat from the sun seems to be causing the output of our HI 2151/30WC to fluctuate. This problem can be seen on our calculated flow. The flow is calculated using old data, fifteen minutes prior, minus current data multiplied by four to bring it to an hourly rate, then multiplied by one thousand to display in klbs/hr. The fluctuation is not as readily seen on the 4-20mA signal, but is definitely noticeable on the calculated flow. Does the HI 2151/30WC controllers have any history of heating problems in the electronics? We might install a heat shield to shade the instrument with a two inch air gap and increase the air flow if this will help?